HO 诱导酸性环境下微波高效破解乳品废水活性污泥以高效产甲烷。
HO induced cost effective microwave disintegration of dairy waste activated sludge in acidic environment for efficient biomethane generation.
机构信息
Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, Tamil Nadu, India.
Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, Tamil Nadu, India.
出版信息
Bioresour Technol. 2017 Nov;244(Pt 1):688-697. doi: 10.1016/j.biortech.2017.07.078. Epub 2017 Aug 7.
This study aimed to improve the biomethane potential of dairy waste activated sludge (WAS) by HO-acidic pH induced microwave disintegration (HAMW-D) pretreatment approach. The results of HAMW-D compared with the microwave disintegration (MW-D) alone for energy and economic factors. In the two phase disintegration process, the HO concentration of about 0.5mg/g SS under acid pH of 5 was found to be optimum for effective dissociation of Extracellular Polymeric Substances (EPS) matrix. A higher liquefaction of about 46.6% was achieved in HAMW-D when compared to that of MW-D (30%). It subsequently improved the methane yield of about 250mL/g VS in HAMW-D, which was 9.6% higher than MW-D. A net profit of about 49€/ton was achieved for HAMW-D, therefore it is highly recommended for WAS pretreatment.
本研究旨在通过 HO 酸性 pH 值诱导的微波解体（HAMW-D）预处理方法来提高乳制品废水活性污泥（WAS）的生物甲烷潜力。结果表明，与单独的微波解体（MW-D）相比，在能源和经济因素方面，HAMW-D 更具优势。在两相解体过程中，在酸性 pH 值为 5 时 HO 浓度约为 0.5mg/g SS 被发现是有效解离细胞外聚合物物质（EPS）基质的最佳条件。与 MW-D（30%）相比，HAMW-D 的液化率更高，约为 46.6%。这继而提高了 HAMW-D 的甲烷产率，约为 250mL/gVS，比 MW-D 高 9.6%。HAMW-D 的净利润约为 49 欧元/吨，因此强烈推荐用于 WAS 的预处理。
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